IP Webcam. It's an android phone and the app is in Google play. It took me ages to sort it as the phone is fairly old and trying to run an unsupported browser, wouldn't open Google play etc etc. Along with addled, sleep deprived brain. Once the app is downloaded though, it's quite straightforward. Send the IP address (which it gives you) to another phone or computer in your network via Bluetooth, open that and Bob's your uncle!
Well, nearly. You have to choose what to view the video on: I have it on "browser" for my laptop and "javascript" on my phone.
I'd have liked to have found a facility that meant I could view it on the internet, so basically almost anywhere when I go out, but it needs android 4 for that.